mt76: update to the latest version

Significantly improves throughput on MT76x2, fixes some stability
issues, adds LED support.

Changes:

266ef38 mt76x2: mcu: remove unused parameter in mt76x2_mcu_msg_alloc signature
758376d mt7603: mcu: remove unused parameter in mt7603_mcu_msg_alloc() signature
e764787 Fix errors found by cppcheck
a6fce8a mt7603: add LED definition registers
f658dd2 mt76x2: add LED register definitions
f6a021d mt76x2: Support using PCI ID as chip ID
c9bdcd8 mt76: add led support using mac80211 led framework
58e9138 mt76x2: init: add ma80211 led callbacks
8ea8da3 mt7603: init: add ma80211 led callbacks
ded88cd mt76x2: Add PCI identifier for MT7602
51a6764 mt7603: remove unnecessary mcu register read function
fbdbf65 debugfs: add support for changing the LED pin
cc02e49 mac80211: move DT led configuration to the "led" child node
e4e7734 mt76x2: limit client WCID entries to 0-127
60172cc mt76x2: clear drop flag for all WCIDs on init
d8140b6 mt76x2: clear per-WCID tx rate lookup register
0ce7923 mt76x2: add helper function for setting drop mask
ccc4baf mt76x2: clear drop mask when sending a PS response
ff60d14 mt76: increase rx ring size for mt76x2
b57ada5 mt76x2: add rx statistics registers
af425de mt76x2: fix LNA gain register annotation
efd7724 mt76x2: sync channel gain value with latest reference driver
4af37bd mt76x2: implement dynamic AGC tuning based on false packet detection count
70f2002 mt76x2: add more gain tuning based on the latest reference driver
8f1c8ab mt76x2: sync tx power related values with reference driver

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/kernel/mt76/Makefile

@@ -8,9 +8,9 @@ PKG_LICENSE_FILES:=
 
 PKG_SOURCE_URL:=https://github.com/openwrt/mt76
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_DATE:=2017-10-12
-PKG_SOURCE_VERSION:=37654d704772512065cd28b007342758c2a0f14a
-PKG_MIRROR_HASH:=487ca40ed4e1ffe015dabc76c0a84782602d84f5b08c9c86cc6c892cb499623b
+PKG_SOURCE_DATE:=2017-11-16
+PKG_SOURCE_VERSION:=8f1c8abdf70566459893a960025615a9f8c522c3
+PKG_MIRROR_HASH:=b4b4910c75b1e5be8d8fb3a2c3d1496d614563688b9ae3fe5522f78d63528e3d
 
 PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
 PKG_BUILD_PARALLEL:=1